Package org.apache.tools.ant.util

Class KeepAliveInputStream

java.lang.Object
java.io.InputStream
java.io.FilterInputStream
org.apache.tools.ant.util.KeepAliveInputStream
All Implemented Interfaces:
java.io.Closeable, java.lang.AutoCloseable
public class KeepAliveInputStream
extends java.io.FilterInputStream
Class that can be used to wrap System.in without getting anxious about any client closing the stream.

In code-language it means that it is not necessary to do: 

 if (out != System.in) {
   in.close();
 }
Since:
Ant 1.6

  • Field Summary

    Fields inherited from class java.io.FilterInputStream

    in

  • Constructor Summary

    Constructors 
    Constructor Description
    KeepAliveInputStream​(java.io.InputStream in)
    Constructor of KeepAliveInputStream.

  • Method Summary

    Modifier and Type Method Description
    void close()
    This method does nothing.
    static java.io.InputStream wrapSystemIn()
    Convenience factory method that returns a non-closing InputStream around System.in.

    Methods inherited from class java.io.FilterInputStream

    available, mark, markSupported, read, read, read, reset, skip

    Methods inherited from class java.io.InputStream

    nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • KeepAliveInputStream

      public KeepAliveInputStream​(java.io.InputStream in)
      Constructor of KeepAliveInputStream.
      Parameters:
      in - an InputStream value, it should be standard input.

  • Method Details

    • close

      public void close() throws java.io.IOException
      This method does nothing.
      Specified by:
      close in interface java.lang.AutoCloseable
      Specified by:
      close in interface java.io.Closeable
      Overrides:
      close in class java.io.FilterInputStream
      Throws:
      java.io.IOException - as we are overriding FilterInputStream.

    • wrapSystemIn

      public static java.io.InputStream wrapSystemIn()
      Convenience factory method that returns a non-closing InputStream around System.in.
      Returns:
      InputStream
      Since:
      Ant 1.8.0